| 改性甲基丙烯酸共聚物分散剂对陶瓷复合料浆流变性及坯体强度的影响 |
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| 引用本文： | 费贵强,沈一丁,王海花,李刚辉,张亚萍. 改性甲基丙烯酸共聚物分散剂对陶瓷复合料浆流变性及坯体强度的影响[J]. 复合材料学报, 2006, 23(5): 96-100 |
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| 作者姓名： | 费贵强 沈一丁 王海花 李刚辉 张亚萍 |
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| 作者单位： | 陕西科技大学,轻化工材料与设计研究所,咸阳,712080;陕西科技大学,材料与工程学院,咸阳,712080 |
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| 摘 要： | 烯丙基聚氧乙烯醚与甲基丙烯酸和甲基丙烯酸甲酯可通过自由基共聚获得两亲结构的水溶性高分子MPMA , 可作为陶瓷浆料分散剂。研究了MPMA 用量对石英/ 长石/ 粘土复合浆料流变性及坯体强度的影响, 并分析了其原因及分散稳定作用机理。结果表明: MPMA 的加入显著优化了料浆的流变性能并提高了成型后陶瓷的强度。在p H 值为9～10 时, MPMA 的最佳用量为0. 57 wt %(相对绝干浆料) , 料浆的Zeta 电位绝对值由28. 5 mV升高到65. 5 mV , 零剪切黏度由690. 9 mPa·s 降低到81. 6 mPa·s , 触变面积最小, 陶瓷料浆基本呈Newton流动特性, 显示了很好的分散性。与添加无机分散剂的陶瓷坯体相比, 添加MPMA 的陶瓷坯体强度由160 MPa升高到268 MPa 。
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| 关 键 词： | 高分子分散剂 陶瓷复合料浆 流变性 强度 |
| 文章编号： | 1000-3851（2006）05-0096-05 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2005-10-312006-01-06 |
Effects of modif ied poly ( methacryl ic acid) dispersant concentration on rheologicalbehavior of compound slurry and ceramic strength |
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| FEI Guiqiang,SHEN Yiding,WANG Haihua,LI Ganghui,ZHANG Yaping. Effects of modif ied poly ( methacryl ic acid) dispersant concentration on rheologicalbehavior of compound slurry and ceramic strength[J]. Acta Materiae Compositae Sinica, 2006, 23(5): 96-100 |
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| Authors: | FEI Guiqiang SHEN Yiding WANG Haihua LI Ganghui ZHANG Yaping |
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| Affiliation: | 1.Institute of Light Chemical Industry Materials and Design| Shaanxi University of Science andTechnology| Xianyang 712080| China ; |
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| Abstract: | Through radical copolymerization , modified waterborne poly methacrylic acid (MPMA) with hydrophilicand hydrophobic group s was prepared by reacting ally poly (ehtenoxy ether) , methacrylic acid and methyl methacrylate. Using MPMA as ceramic dispersant , the effect s of MPMA concent ration on the rheological behavior of Diamond/ Feldspar/ Clay compound slurry and ceramic breaking st rength were studied , and simultaneously the reasonsand dispersive mechanism were analyzed. The result s show that MPMA can improve the slurryps rheological properties and the ceramic st rength. The optimum MPMA concent ration is 0. 57 wt % (based on the absolute dry slurry)with p H ranging from 9 to 10. When adding 0. 57 wt % MPMA , the slurryps negative Zeta potential increases from28. 5 mV to 65. 5 mV , and it s zero shear viscosity decreases from 690. 9 mPa·s to 81. 6 mPa·s. At the same time , it sthixot ropy area reaches the minimum , and the slurry exhibit s Newton flow behavior. Compared with ceramic withinorganic dispersant addition , the ceramic with MPMA addition owns higher breaking st rength , which is increasedfrom 160 MPa to 268 MPa. |
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| Keywords: | polymeric dispersant ceramic compound slurry rheological properties strength |
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